Home / 148,942.35-205,540.07-80,959.32

Finding the Fourth Proportional to 148,942.35, 205,540.07 and 80,959.32

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Solution

The fourth proportional to 148,942.35, 205,540.07 and 80,959.32 is: 111,723.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,942.35 : 205,540.07 = 80,959.32 : x
  2. Step 2: Convert to fraction form
    148,942.35/205,540.07 = 80,959.32/x
  3. Step 3: Cross multiply
    148,942.35x = 205,540.07 × 80,959.32
  4. Step 4: Simplify right side
    148,942.35x = 16,640,383,895.16
  5. Step 5: Solve for x
    x = 16,640,383,895.16/148,942.35
  6. Step 6: Final answer
    x = 111,723.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.